A. Copper-constantan
B. Chromel-alumel
C. Platinum-platinum/rhodium
D. Iron-constantan
Related Mcqs:
- Which of the following thermocouples has the widest temperature measurement range ?
A. Iron-constantan
B. Chromel-alumel
C. Copper-constantan
D. Platinum-platinum/rhodium - All the thermocouples used for temperature measurement use dissimilar metal ________________?
A. Strips
B. Bars
C. Wires
D. Beads - Normal mercury thermometer can be used to measure a temperature of about 300°C. However, its maximum temperature measurement range can be increased upto about 500°C by__________________?
A. Filling nitrogen under pressure in the stem
B. Increasing the diameter of the tube
C. Using steel tube in place of glass tube
D. Accounting for the tube expansion - Which of the following thermocouples can measure the maximum temperature ?
A. Platinum-rhodium
B. Tungsten-molybdenum
C. Chromel-alumel
D. Iron-constantan - Which of the following thermocouples is the most suitable for measuring a temperature of about 1600°C in an oxidizing atmosphere ?
A. Platinum-platinum + rhodium
B. Iron-constantan
C. Copper-constantan
D. Chromel-alumel - Which of the following thermocouples will give the highest output for the same value of hot and cold junction temperature ?
A. Platinum-platinum + rhodium
B. Iron-constantan
C. Chromel-constantan
D. All will give the same output - Which of the following thermocouples is capable of measuring a temperature of -50°C ?
A. Platinum-platinum + rhodium
B. Chromel-Alumel
C. Iron-constantan
D. Copper-constantan - Thermal well made of _____________ gives the fastest speed of response, while measuring temperature by thermocouples?
A. Steel
B. Vycor (a glass)
C. Nichrome
D. Inconel - The thermal emf-temperature relationship of most thermocouples is_________________?
A. Linear
B. Parabolic
C. Exponential
D. Square root - Water is flowing through a series of four tanks and getting heated as shown in figure. It is desired to design a cascade control scheme for controlling the temperature of water leaving the tank 4 as there is a disturbance in the temperature of a second stream entering the tank 2. Select the best place to take the secondary measurement for the second loop?
A. Tank 1
B. Tank 2
C. Tank 3
D. Tank 4
